.example{
  margin-bottom: 60px;
  &-body{
    &__list{
      display: flex;
      &-item{
        flex: auto;
        height: 300px;
      }
    }  
    &__list--vertical{
      width: 200px;
      flex-direction: column;
      margin-left: auto;
      margin-right: auto;
      .example-body__list-item{
        flex: 1 1 200px;
      }
    }  
  }
}